Here is the full list of all 35 Shadow Man Remastered achievements.
Defeat the Seraph Queen
Find the second Violator
Defeat Legion and stop the apocalypse
Find every Cadeaux
Open all Soul Gates
Reach Shadow Level 10
Defeat Victor Batrachian
Shoot down all helicopters in Gardelle County Jail, Texas.
Offer Cadeaux to all life altars
Defeat Marco Cruz
Defeat Avery Marx
Defeat Jack the Ripper
Defeat Milton Pike
Find an Accumulator
Find the Violator
Acquire Swim Gad
Bestow nightfall to Liveside
Defeat a True Form
Reach Shadow Level 7
Acquire Walk Gad
Find a piece of the L'Eclipser
Acquire Poigne
Reach Shadow Level 4
Offer 100 Cadeaux to the Loa
Acquire Touch Gad
Unlock a Secret
Find a Retractor
Defeat Yort
Find a Voodoo weapon
Find and take a Dark Soul
Open a Soul Gate
Fail to stop Legion from bringing about the apocalypse
Unlock all Secrets
Save the world without dying
Enter the horror again through the hardest of trials.